diff --git a/src/popupwin.c b/src/popupwin.c
index 968f6ee..aa19a5d 100644
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -317,7 +317,7 @@
 	return;
     if (row >= wp->w_popup_border[0]
 	    && row < height - wp->w_popup_border[2]
-	    && col == popup_width(wp) - 1)
+	    && col == popup_width(wp) - wp->w_popup_border[1] - 1)
     {
 	if (row >= height / 2)
 	{